Title (en)

ALTERATION OF SUCCESSIVE CANCELLATION ORDER IN DECODING OF POLAR CODES

Title (de)

ÄNDERUNG DER REIHENFOLGE DER SUKZESSIVEN LÖSCHUNGEN IN DER DEKODIERUNG VON POLARKODES

Title (fr)

ALTÉRATION DE L'ORDRE D'ANNULATIONS SUCCESSIVES DANS LE DÉCODAGE D'UN CODE POLAIRE

Publication

EP 3577767 B1 20201021 (EN)

Application

EP 18705985 A 20180205

Priority

• US 201762455322 P 20170206
• IB 2018050719 W 20180205

Abstract (en)

[origin: WO2018142367A1] Systems and methods for performing polar decoding using a transformation of the coded bits prior to polar decoding and an inverse transformation of the resulting data bits after polar decoding are disclosed. In some embodiments, a method of operation of a receiving node to perform polar decoding comprises transforming a received code bit vector yN in accordance with a transformation TN to thereby provide a transformed code bit vector Y'N = ΥΝΤN, performing polar decoding of the transformed code bit vector y'N to thereby provide a transformed data bit vector v'N, and inversely transforming the transformed data bit vector v'N in accordance with an inverse transformation TN -1 to thereby provide an estimated data bit vector vN = v'NTN -1. In some embodiments, the transformation TN re-orders coded bits in the coded bit vector yN such that some future frozen bit(s) are swapped in front of some information bit(s) prior to performing polar decoding.

IPC 8 full level

H03M 13/13 (2006.01)

CPC (source: EP US)

H03M 13/13 (2013.01 - EP); H04N 19/189 (2014.11 - US); H04N 19/50 (2014.11 - US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2018142367 A1 20180809; CN 110506395 A 20191126; EP 3577767 A1 20191211; EP 3577767 B1 20201021; US 11323727 B2 20220503; US 2021021844 A1 20210121

DOCDB simple family (application)

IB 2018050719 W 20180205; CN 201880023377 A 20180205; EP 18705985 A 20180205; US 201816483503 A 20180205